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Class Information
Number: 166/242.1
Name: Wells > Conduit wall or specific conduit end structure
Description: Apparatus comprising (a) a particular modification to a pipe through the thickness or (b) means at the end of a conduit for facilitating entry of the conduit into the well (e.g., casing shoes).










Sub-classes under this class:

Class Number Class Name Patents
166/242.9 Brick or cement casing liner 4
166/242.4 Corrosion prevention or deterring 34
166/242.6 Downhole coupling or connector 360
166/242.2 Flexible tube or cable 121
166/242.3 Plural, parallel, nonconcentric conduits 97
166/242.8 Shoe detail 71
166/242.5 Side entry 58


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8689864 Activation device Apr. 8, 2014
8672024 Subsurface well completion system having a heat exchanger Mar. 18, 2014
8662165 Fiber support arrangement and method Mar. 4, 2014
8640770 End ring for use with swell packers Feb. 4, 2014
8602097 Well assembly with a composite fiber sleeve for an opening Dec. 10, 2013
8540015 Apparatus and method for treating a subterranean formation using diversion Sep. 24, 2013
8496064 System and method for engaging completions in a wellbore Jul. 30, 2013
8453728 Apparatus and method for depth referencing downhole tubular strings Jun. 4, 2013
8443904 Continuous communications conduit apparatus and method May. 21, 2013
8439105 Completion system for subsurface equipment May. 14, 2013
8439122 Radial spring latch apparatus and methods for making and using same May. 14, 2013
8408286 Perforating string with longitudinal shock de-coupler Apr. 2, 2013
8397800 Perforating string with longitudinal shock de-coupler Mar. 19, 2013
8344905 Method and conduit for transmitting signals Jan. 1, 2013
8251139 System and method for sealing couplings in downhole tubing strings Aug. 28, 2012
8225876 Continuous communications conduit apparatus and method Jul. 24, 2012
8208777 Structure for electrical and/or optical cable using impregnated fiber strength layer Jun. 26, 2012
8196663 Dead string completion assembly with injection system and methods Jun. 12, 2012
8141647 Method of radially expanding a tubular element Mar. 27, 2012
8104537 Method of developing subsurface freeze zone Jan. 31, 2012
8091627 Stress relief in a pocket of a downhole tool string component Jan. 10, 2012
8069931 System, method and apparatus for downhole system having integrated measurement while operating components Dec. 6, 2011
8033329 System and method for connecting wired drill pipe Oct. 11, 2011
7980303 Laminate pressure containing body for a well tool Jul. 19, 2011
7921920 Anti-coning well intake Apr. 12, 2011
7900698 Downhole wet-mate connector debris exclusion system Mar. 8, 2011
7886818 Expandable packer system Feb. 15, 2011
RE42030 Critical velocity reduction in a gas well Jan. 18, 2011
7854257 Mechanically coupled screen and method Dec. 21, 2010
7845402 Expandable packer system Dec. 7, 2010
7814978 Casing expansion and formation compression for permeability plane orientation Oct. 19, 2010
7810573 Method for retrofitting a downhole drill string with a flow through subassembly and method for making same Oct. 12, 2010
7802621 Inflow control devices for sand control screens Sep. 28, 2010
7798234 Umbilical assembly, subsea system, and methods of use Sep. 21, 2010
7798226 Cement diffuser for annulus cementing Sep. 21, 2010
7798212 System and method for forming downhole connections Sep. 21, 2010
7793722 Non-ferromagnetic overburden casing Sep. 14, 2010
7762334 Eccentrically-disposed choke injector Jul. 27, 2010
7757758 Expandable wellbore liner Jul. 20, 2010
7753111 Reinforced tubing string Jul. 13, 2010
7740077 Downhole oilfield tubulars Jun. 22, 2010
7703542 Expandable packer system Apr. 27, 2010
7703538 Access apparatus from a tubular into a downhole hydraulic control circuit and associated method Apr. 27, 2010
7703524 Cutting windows for lateral wellbore drilling Apr. 27, 2010
7686073 Tubing string Mar. 30, 2010
7677321 Expandable tubulars for use in geologic structures, methods for expanding tubulars, and methods of manufacturing expandable tubulars Mar. 16, 2010
7647971 Method of developing subsurface freeze zone Jan. 19, 2010
7647977 Borehole liner Jan. 19, 2010
7640975 Flow control for increased permeability planes in unconsolidated formations Jan. 5, 2010
7624799 Rotationally locked wear sleeve for through-tubing drilling and completion Dec. 1, 2009

1 2 3 4 5 6










 
 
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